Shareholders' Equity and Share-Based Compensation - Restricted Stock Activity (Details)	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Total Outstanding Units
Beginning balance, Total Outstanding, Units (in shares) | shares	889,438
Granted, Total Outstanding Units (in shares) | shares	197,207
Adjustment for performance achievement, Total Outstanding Units (in shares) | shares	419
Vested, Total Outstanding Units (in shares) | shares	0
Forfeited, Total Outstanding Units (in shares) | shares	(61,025)
Distributed, Total Outstanding Units (in shares) | shares	(202,646)
Ending balance, Total Outstanding, Units (in shares) | shares	823,393
Outstanding Units, Weighted Average Grant Date Fair Value per Unit
Beginning balance, Total Outstanding, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	$ 31.94
Granted, Total Outstanding, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	42.07
Adjustment for performance achievement, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	46.32
Vested, Total Outstanding, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	0
Forfeited, Total Outstanding, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	43.60
Distributed, Total Outstanding, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	34.51
Ending balance, Total Outstanding, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	$ 33.88
Vested Units
Beginning balance, Vested, Units (in shares) | shares	543,794
Granted, Vested, Units (in shares) | shares	0
Adjustment for performance achievement, Units (in shares) | shares	0
Vested, Vested, Units (in shares) | shares	143,836
Forfeited, Vested, Units (in shares) | shares	0
Distributed, Vested, Units (in shares) | shares	(202,646)
Ending balance, Vested, Units (in shares) | shares	484,984
Vested Units, Weighted Average Grant Date Fair Value per Unit
Beginning balance, Vested, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	$ 24.77
Granted, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	0
Adjustment for performance achievement, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	0
Vested, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	42.56
Forfeited, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	0
Distributed, Vested, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	34.51
Ending balance, Vested, Weighted Average Grant Date Fair Value per Unit (in usd per share) | $ / shares	$ 27.48